H04J 14/0298
With sub-carrier multiplexing [scm]
Official title: {with sub-carrier multiplexing [SCM]}
H04J14/0298 (With sub-carrier multiplexing [scm]) appears on 785 US grants and 720 published applications in this corpus.
Search patents in H04J- Granted patents
- 785
- Published applications
- 720
- Assignees
- 230
- Inventors
- 1,083
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 12 | 0 |
| 1995 | 11 | 0 |
| 1996 | 19 | 0 |
| 1997 | 20 | 0 |
| 1998 | 17 | 0 |
| 1999 | 17 | 0 |
| 2000 | 16 | 0 |
| 2001 | 18 | 6 |
| 2002 | 31 | 59 |
| 2003 | 37 | 31 |
| 2004 | 19 | 21 |
| 2005 | 17 | 23 |
| 2006 | 23 | 23 |
| 2007 | 26 | 71 |
| 2008 | 35 | 46 |
| 2009 | 28 | 38 |
| 2010 | 19 | 24 |
| 2011 | 28 | 20 |
| 2012 | 25 | 30 |
| 2013 | 21 | 30 |
| 2014 | 28 | 35 |
| 2015 | 29 | 18 |
| 2016 | 26 | 24 |
| 2017 | 23 | 24 |
| 2018 | 26 | 20 |
| 2019 | 23 | 23 |
| 2020 | 25 | 35 |
| 2021 | 21 | 36 |
| 2022 | 41 | 31 |
| 2023 | 34 | 23 |
| 2024 | 21 | 15 |
| 2025 | 13 | 13 |
| 2026 | 7 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Signal processing apparatus, optical transmitting apparatus, optical receiving apparatus, optical transmission system, and signal processing method25 Aug 2026US 12,719,583 B2NEC Corporation
- Method for wireless communication by remotely controlling beamforming4 Aug 2026US 12,700,941 B2NTT, Inc.
- Data transmission rates from optical sources28 Jul 2026US 12,695,511 B2Monash University
- Wavelength diversity turbulence mitigation method and apparatus for free-space optical communications30 Jun 2026US 12,671,500 B2Ciena Corporation
- Optical imager and method using subcarrier multiplexing19 May 2026US 12,631,735 B1HRL Laboratories, LLC
- An optical wireless communication system17 Sep 2026US 2026/0280706 A1Signify Holding B. V.
- Frequency division multiple access optical subcarriers11 Sep 2025US 2025/0286619 A1
- Carrier Allocation Method and Apparatus in Optical Communication Network14 Aug 2025US 2025/0260914 A1Huawei Technologies Co., Ltd.
- Wavelength diversity turbulence mitigation method and apparatus for free-space optical communications19 Jun 2025US 2025/0202586 A1Ciena Corporation
- Frequency division multiple access optical subcarriers12 Jun 2025US 2025/0192881 A1
Most cited
By later US patents
- Interactive information services control system642US 5,481,542 AScientific-Atlanta, Inc. · 1996
- Radio communication system572US 7,043,271 B1Kabushiki Kaisha Toshiba · 2006
- Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter445US 5,955,992 A1999
- Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith320US 6,275,990 B1ADC Telecommunications, Inc. · 2001
- Multiple access method and system268US 7,010,048 B1Aqvity, LLC · 2006